garddeW, loc. dial. form of garddau, pl. of gardd. . Cadrawd, in ‘The Place-names of Monmouthshire,' an unpublished eisteddfodic essay, CCL, [Meisg. 27], writes - ‘A very common name in Gwent and Morgannwg for an enclosure near the farmhouse, into which the calves were turned out for the first time. In the days of shoeing oxen, it was in the Gardda they were felled to nail on the shoes. The place was always green, and the grass kept short, and it was well fenced'.‘The forms "garddau, gardda" are often found in "Plymouth Surveys, 1766" with its English translation of "Gardens".'[Meisg. 27]. Cornel y gardde. Cae'r Gardda, Aberdare.

Gwynno pers.name. Patron Saint of Llan Wynno (mutated), and along with Illtyd and Dyfodwg, is one of the three patron saints of Llantrisant(church of the three saints). The parish of Vaynor, (Y Faenor) near Merthyr Tydfil, is also known as Maenor Gwynno. e.g. Llanwynno.OSM. (Llanivonno,1535).